From 738567894adfb801699a6faaad9a4140723ef2a9 Mon Sep 17 00:00:00 2001
From: Nicholas Wehr <github@biochx.com>
Date: Tue, 26 Aug 2025 19:49:45 -0700
Subject: [PATCH] only consider top level highest dir name on archive node file
 root; also added back hlfs to blockingest struct

---
 bin/reth/src/block_ingest.rs |  2 ++
 bin/reth/src/share_blocks.rs |  4 ++--
 crates/net/hlfs/src/lib.rs   | 20 +++++++++++++++-----
 3 files changed, 19 insertions(+), 7 deletions(-)

diff --git a/bin/reth/src/block_ingest.rs b/bin/reth/src/block_ingest.rs
index 39586e305..da6884870 100644
--- a/bin/reth/src/block_ingest.rs
+++ b/bin/reth/src/block_ingest.rs
@@ -29,6 +29,7 @@ use tokio::sync::Mutex;
 use tracing::{debug, info};
 
 use crate::serialized::{BlockAndReceipts, EvmBlock};
+use crate::share_blocks::ShareBlocks;
 use crate::spot_meta::erc20_contract_to_spot_token;
 
 /// Poll interval when tailing an *open* hourly file.
@@ -41,6 +42,7 @@ pub(crate) struct BlockIngest {
     pub local_ingest_dir: Option<PathBuf>,
     pub local_blocks_cache: Arc<Mutex<BTreeMap<u64, BlockAndReceipts>>>, // height → block
     pub precompiles_cache: PrecompilesCache,
+    pub hlfs: Option<ShareBlocks>,
 }
 
 #[derive(Deserialize)]
diff --git a/bin/reth/src/share_blocks.rs b/bin/reth/src/share_blocks.rs
index ee7afa1bc..4e5188c12 100644
--- a/bin/reth/src/share_blocks.rs
+++ b/bin/reth/src/share_blocks.rs
@@ -54,12 +54,12 @@ impl ShareBlocks {
             }
         });
 
-        let _autodetect = spawn_autodetect(network, host, args.share_blocks_port, args.archive_dir.clone());
+        let _autodetect =
+            spawn_autodetect(network, host, args.share_blocks_port, args.archive_dir.clone());
 
         info!(%bind, dir=%args.archive_dir.display(), "hlfs: enabled (reth peers)");
         Ok(Self { _server, _autodetect })
     }
-
 }
 
 fn spawn_autodetect<Net>(
diff --git a/crates/net/hlfs/src/lib.rs b/crates/net/hlfs/src/lib.rs
index d8ba3a059..d9490f159 100644
--- a/crates/net/hlfs/src/lib.rs
+++ b/crates/net/hlfs/src/lib.rs
@@ -194,7 +194,20 @@ fn find_max_number_file(root: &Path) -> Result<u64> {
     }
 
     let mut best = Some(0);
-    walk(root, &mut best)?;
+    let top: PathBuf = fs::read_dir(root)?
+        .filter_map(|e| e.ok())
+        .filter(|e| e.file_type().map(|t| t.is_dir()).unwrap_or(false))
+        .filter_map(|e| {
+            let name = e.file_name();
+            let s = name.to_str()?;
+            let n: u64 = s.parse().ok()?;
+            Some((n, e.path()))
+        })
+        .max_by_key(|(n, _)| *n)
+        .map(|(_, p)| p)
+        .ok_or_else(|| io::Error::new(io::ErrorKind::NotFound, "no numeric top-level dirs"))?;
+
+    walk(&top, &mut best)?;
     Ok(best.expect("cannot find block files"))
 }
 
@@ -327,10 +340,7 @@ impl Backfiller {
             }
         }
     }
-    pub async fn fetch_if_missing(
-        &mut self,
-        number: u64,
-    ) -> Result<Option<u64>, HlfsError> {
+    pub async fn fetch_if_missing(&mut self, number: u64) -> Result<Option<u64>, HlfsError> {
         let rr_index = number as usize;
         let n = number.saturating_sub(1); // 0 -> 0, others -> number-1
         let f = (n / 1_000_000) * 1_000_000;